c86589a738
These were never working with native CPU features. In this branch, we fix native CPU features not being enabled on Windows, and regress f128 language features. In the llvm10 branch, all this is fixed, and the tests are re-enabled.
94 lines
3.2 KiB
Zig
94 lines
3.2 KiB
Zig
// Ported from:
|
|
//
|
|
// https://github.com/llvm/llvm-project/blob/02d85149a05cb1f6dc49f0ba7a2ceca53718ae17/compiler-rt/test/builtins/Unit/addtf3_test.c
|
|
// https://github.com/llvm/llvm-project/blob/02d85149a05cb1f6dc49f0ba7a2ceca53718ae17/compiler-rt/test/builtins/Unit/subtf3_test.c
|
|
|
|
const qnan128 = @bitCast(f128, @as(u128, 0x7fff800000000000) << 64);
|
|
const inf128 = @bitCast(f128, @as(u128, 0x7fff000000000000) << 64);
|
|
|
|
const __addtf3 = @import("addXf3.zig").__addtf3;
|
|
|
|
fn test__addtf3(a: f128, b: f128, expected_hi: u64, expected_lo: u64) void {
|
|
const x = __addtf3(a, b);
|
|
|
|
const rep = @bitCast(u128, x);
|
|
const hi = @intCast(u64, rep >> 64);
|
|
const lo = @truncate(u64, rep);
|
|
|
|
if (hi == expected_hi and lo == expected_lo) {
|
|
return;
|
|
}
|
|
// test other possible NaN representation (signal NaN)
|
|
else if (expected_hi == 0x7fff800000000000 and expected_lo == 0x0) {
|
|
if ((hi & 0x7fff000000000000) == 0x7fff000000000000 and
|
|
((hi & 0xffffffffffff) > 0 or lo > 0))
|
|
{
|
|
return;
|
|
}
|
|
}
|
|
|
|
@panic("__addtf3 test failure");
|
|
}
|
|
|
|
test "addtf3" {
|
|
if (@import("std").Target.current.isWindows()) {
|
|
// TODO https://github.com/ziglang/zig/issues/508
|
|
return error.SkipZigTest;
|
|
}
|
|
test__addtf3(qnan128, 0x1.23456789abcdefp+5, 0x7fff800000000000, 0x0);
|
|
|
|
// NaN + any = NaN
|
|
test__addtf3(@bitCast(f128, (@as(u128, 0x7fff000000000000) << 64) | @as(u128, 0x800030000000)), 0x1.23456789abcdefp+5, 0x7fff800000000000, 0x0);
|
|
|
|
// inf + inf = inf
|
|
test__addtf3(inf128, inf128, 0x7fff000000000000, 0x0);
|
|
|
|
// inf + any = inf
|
|
test__addtf3(inf128, 0x1.2335653452436234723489432abcdefp+5, 0x7fff000000000000, 0x0);
|
|
|
|
// any + any
|
|
test__addtf3(0x1.23456734245345543849abcdefp+5, 0x1.edcba52449872455634654321fp-1, 0x40042afc95c8b579, 0x61e58dd6c51eb77c);
|
|
}
|
|
|
|
const __subtf3 = @import("addXf3.zig").__subtf3;
|
|
|
|
fn test__subtf3(a: f128, b: f128, expected_hi: u64, expected_lo: u64) void {
|
|
const x = __subtf3(a, b);
|
|
|
|
const rep = @bitCast(u128, x);
|
|
const hi = @intCast(u64, rep >> 64);
|
|
const lo = @truncate(u64, rep);
|
|
|
|
if (hi == expected_hi and lo == expected_lo) {
|
|
return;
|
|
}
|
|
// test other possible NaN representation (signal NaN)
|
|
else if (expected_hi == 0x7fff800000000000 and expected_lo == 0x0) {
|
|
if ((hi & 0x7fff000000000000) == 0x7fff000000000000 and
|
|
((hi & 0xffffffffffff) > 0 or lo > 0))
|
|
{
|
|
return;
|
|
}
|
|
}
|
|
|
|
@panic("__subtf3 test failure");
|
|
}
|
|
|
|
test "subtf3" {
|
|
if (@import("std").Target.current.isWindows()) {
|
|
// TODO https://github.com/ziglang/zig/issues/508
|
|
return error.SkipZigTest;
|
|
}
|
|
// qNaN - any = qNaN
|
|
test__subtf3(qnan128, 0x1.23456789abcdefp+5, 0x7fff800000000000, 0x0);
|
|
|
|
// NaN + any = NaN
|
|
test__subtf3(@bitCast(f128, (@as(u128, 0x7fff000000000000) << 64) | @as(u128, 0x800030000000)), 0x1.23456789abcdefp+5, 0x7fff800000000000, 0x0);
|
|
|
|
// inf - any = inf
|
|
test__subtf3(inf128, 0x1.23456789abcdefp+5, 0x7fff000000000000, 0x0);
|
|
|
|
// any + any
|
|
test__subtf3(0x1.234567829a3bcdef5678ade36734p+5, 0x1.ee9d7c52354a6936ab8d7654321fp-1, 0x40041b8af1915166, 0xa44a7bca780a166c);
|
|
}
|